Ipomoea digitata

Wood, John R. I., Munoz-Rodriguez, Pablo, Williams, Bethany R. M. & Scotland, Robert W., 2020, A foundation monograph of Ipomoea (Convolvulaceae) in the New World, PhytoKeys 143, pp. 1-823 : 1

214. Ipomoea digitata L., Syst. Nat., ed. 10, 2: 924. 1759. (Linnaeus 1759a: 924)

Quamoclit digitata (L.) G. Don, Gen. Hist. 4: 260. 1838. (Don 1838: 260).

Ipomoea paniculata var. digitata (L.) Kuntze, Revis. Gen. Pl. 2: 445. 1891. (Kuntze 1891: 445).

Ipomoea rubrocincta Urb. Symb. Antill 3(2): 347. 1902. (Urban 1902-3: 347). Type. HAITI. Inter La Coupe et Pintade, W. Buch 482 (holotype B?†, fragment and photo of holotype US).

Ipomoea rubrocincta var. brachyloba Urb. , Symb. Antill 7: 341: 1912. (Urban 1912: 341). Type. HAITI. Poste Coudon, W. Buch 1015 (holotype B, isotype GH00054578).

Type.

Icon in Plumier in Burman, Pl. Amer. 81, t. 92, f. 1 (1756), uncertainly designated by Stearn 1961: 17), redesignated as lectotype here).

Description.

Stout climbing perennial; stems woody below, usually glabrous. Leaves petiolate, rather small, palmately 5-7-lobed generally to about two thirds, base truncate, lobes 1-2.5 × 0.2-0.7 cm, oblong to narrowly lanceolate, obtuse to retuse, sometimes muricate, the laterals smaller and often pedate, margin entire, undulate or crenate, usually glabrous. Inflorescence of pedunculate 2-5-flowered axillary cymes; primary peduncles 2-6.5 cm; bracteoles 1 mm, deltoid, acute, deciduous; secondary and tertiary peduncles 1.5-2.5 cm; pedicels 5-11 mm; sepals subequal, 3-5 mm, suborbicular, obtuse or rounded, coriaceous, glabrous, margins reddish, the inner scarious; corolla 3-4 cm long, funnel-shaped from a very narrow base, pink, glabrous, limb c. 2 cm diam., shallowly lobed. Capsules ellipsoid, 8-9 × 5 mm, glabrous; seeds 5-6 × 2 mm, long-pilose with white hairs c. 7 mm long.

Illustration.

Liogier (1994: 81).

Distribution.

Endemic to coastal forest on limestone hills in Hispaniola.

HAITI. Massif de la Hotte, E.L. Ekman H2433 (S); H6048 (S); Massif des Cahos, Gonaïves, E.L. Ekman H9065 (NY, S).

DOMINICAN REPUBLIC. Santo Domingo, E.L. Ekman H13512 (K, S); Río Arriba del Norte, R.A. & E.S. Howard 8923 (BM); Monte Cristi, A.H. Liogier 16417 (NY).